Chilly weather calls for a little chocolate indulgence — and in New York, these two are culinary must-haves. There’s City Bakery’s hot chocolate, famous for its thick, melted bar texture and homemade marshmallow topping. Add a dense, gooey Levain Bakery chocolate chip cookie — hockey puck-sized and the subject of pilgrimages uptown — and that cozy craving will be more than satisfied.